Improvement in steam-boilers



'- 132 ,35 Y Patented Nov. 5, 18 7 2.

W. H. PHELON.

' Improvement in Steam-Boilers.

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UNITED STATES ATE WILLIAM H. PHELON, on NEW ORLEANS, LOUISIANA.

IMPROVEMENT IN STEAM-BOILERS.

Specification forming part of Letters Patent No. 132,856, dated November 5, 1872.

To all whom it may concern:

Be it known that I, WILLIAM H. PnnLoN,

- of New Orleans, in the parish of Orleans and State of Louisiana, have invented certain Improvements in Steam-Boilers, of which the following is a specification:

The main objects of this invention are to increase the generative capacity of the boiler as a whole and to economize fuel; to burn the smoke and inflammable products of combustion; likewise, to supply a purer quality of water to the boiler, and to provide for discharge of mud or sediment throughout its length. To these and other. ends the invention consists in a combined attachment of mud and water receiving cylinders, together with a perforated inlet-pipe, for a better distribution of the wa ter and consequent precipitation of mud, a system of perforated hot-air pipes for burning the gases, and a perforated muddischarge pipe, all substantially as hereinafter described.

In the accompanying drawing, which forms part of this specification, Figure 1 represents a longitudinal vertical section of a steam-boiler or system of boilers having my invention applied to it, and Fig. 2 a partly-sectional rearend elevation of the same.

Although the invention is here only shown as applied to a two-cylinder boiler with mud and water. receiving cylinders attached, it is equally applicable to any number of such boilers making up a system or battery of boilers, and in part to other kinds of boilers, more especially those which fire on the outside.

G- G represent two main boilers arranged side by side, having duplicate draft-flues H H through each of them, in connection with the chimney It, and said two boilers being connected to work in common. A is the steampipe from said boilers by or through a branch pipe, B, steam-drums G C, and legs D D, connecting said drums with the main boilers G G. P P are the mud-drums and auxiliary boilers or water-receivers, arranged below the main boilers G G, and in connection with the latter by legs KK. I is the grate, and J the bridgewall of the boiler or system of boilers, and L the furnace-walls, built of brick. A system of perforated tiles may, if desired, be placed upon top of the lower boilers, between the legs or connections K K. N is the pipe by which the water is supplied to the boiler. lhis pipe is duplicated or formed with branches to enter either lower boiler P from below, at or near its back end, and suitably bent and extended to run throughout or along the upper portion of each of said boilers, such extensions being perforated below, as at b b, to distribute the supply of water or feed it in a gentle and scattered manner throughout the length of each of said boilers P P. Any mud or sediment entering with the feed-water is also precipitated, by such arrangement of perforated feed pipe or pipes, throughout and over the length of the lower boilers, while the body of water in them is kept from being chilled when feeding with cold water, and in no case is it possible for any cold water to act upon the metal of any of the boilers. O is a perforated blow-off pipe, arranged along and near the bottom of each lower boiler P, for removing, by opening a blow-off valve, the mud and sediment as deposited throughout the entire length of each of said boilers, thus rendering the water that passes to the main boilers G G by the connections K K pure and free from mud and sediment, thereby adding to the safety of the boiler as a whole for high pressures, and making a less intense heat suffice for the generation of the steam. Furthermore, the mud or sediment is precipitated in the sub-chamber at a point where comparatively little heat is applied. To reduce the loss by radiation of heat from the boiler and its connections I cover the top of the main boilers G G with sheet-iron of suitable thickness, and arranged to lie on the rivetheads of said boilers so as to leave air-spaces between such covering and the boilers. Said coverings U extend throughout the length of the boilers and below the water-lines and upper fire-lines thereof, the tile and brick-work of the furnace resting on such sheet-metal coverings, which prevents rusting of the boiler by the lime in the mortar and brick-work. The means for consuming the smoke and escaping gases or products of combustion consist of a system, M, of perforated air-pipes, which may be made of any suitable material to resist the action of the fire. These pipes are arranged to form a frame-work of parallel pipes m, running lengthwise of the boiler and cross connecting-pipes a, all disposed within the flue-space from the furnace, and so that the forward portion of said frame-Work enters the back portion of the furnace, or to within four or five feet, more or less, of the grate, and the parallel pipes m having branches 0 o straddling the boilers. The air is introduced by a blast or forced current, as at cl, in the rear, and, passing through the pipes, becomes highly heated, and only escapes by perforations in the sides of the pipes, thereby causing the smoke and escaping gaseous products of cornbustion to be burned also aiding the draft by reason of the perforations in the forward crosspipe n and the branches 0 0 being arranged to face the back end of the boiler, corresponding with the course of the draft.

I do not claim broadly a perforated feedpipe or similar blow-ofi" pipe arranged within an ordinary boiler; but

What is here claimed, and desired to be secured by Letters Patent, is-- 1. The perforated feed-pipe N and blow-0E pipe 0, arranged Within the auxiliary boiler or mud-drum P, relatively to each other and the combustion-chamber of the furnace, substantially as specified.

WILLIAM H. PHELON.

\Vitnesses: I

JOHN HAEBERLE, J. J. MITCHELL. 

